File:Arenaeus cribrarius (speckled crab) (Mullet Key, Tampa Bay, Florida, USA) 1 (23903146354).jpg
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DescriptionArenaeus cribrarius (speckled crab) (Mullet Key, Tampa Bay, Florida, USA) 1 (23903146354).jpg |
Arenaeus cribrarius (Lamarck, 1818) - dorsal view of a speckled crab carapace in Florida, USA. (December 2012) Orientation: anterior at top; posterior below. The crustaceans are a large group of arthropods that inhabit marine, marginal marine, freshwater, and terrestrial habitats. The crustaceans include crabs, lobsters, shrimp, crayfish, barnacles, ostracods, and other organisms. The oldest fossil crustaceans are in the Cambrian. The group experienced a significant radiation in the oceans during the Mesozoic Marine Revolution. The above photo shows a carapace of a speckled crab, Arenaeus cribrarius. This species is a swimming crab with a carapace morphology similar to that of blue crabs (Callinectes sapidus - see: www.flickr.com/photos/jsjgeology/23886163513). Speckled crabs are frequently infaunal - they bury themselves in shallow-water and beachface sandy sediments. Arenaeus cribrarius preys on molluscs, decapods, and fish. (info. synthesized from Witherington & Witherington, 2007) Classification: Animalia, Arthropoda, Crustacea, Malacostraca, Decapoda, Brachyura, Portunidae Locality: Fort DeSoto Gulf Pier Beach - beach just north of southwestern corner of Mullet Key, Fort DeSoto County Park, northern edge of far-western Tampa Bay, Gulf of Mexico Coast of southern Florida, USA More info. at: en.wikipedia.org/wiki/Crustacean and www.inaturalist.org/taxa/122198-Arenaeus-cribrarius Reference cited: Witherington & Witherington (2007) - Florida's Living Beaches, a Guide for the Curious Beachcomber. Sarasota, Florida. Pineapple Press, Inc. 326 pp. |
Date | |
Source | Arenaeus cribrarius (speckled crab) (Mullet Key, Tampa Bay, Florida, USA) 1 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/23903146354. It was reviewed on 10 February 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
10 February 2016
Captions
Items portrayed in this file
depicts
some value
18 December 2012
image/jpeg
373b687422efa24b35124876f869829764aa603f
4,390,564 byte
1,765 pixel
3,015 pixel
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:27, 10 February 2016 | ![]() | 3,015 × 1,765 (4.19 MB) | commons>Patko erika | Transferred from Flickr via Flickr2Commons |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/1,000 sec (0.001) |
F Number | f/4 |
ISO speed rating | 80 |
Date and time of data generation | 17:24, 18 December 2012 |
Lens focal length | 11.614 mm |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 22:44, 21 January 2016 |
Exif version | 2.21 |
Date and time of digitizing | 17:24, 18 December 2012 |
Image compression mode | 2 |
APEX shutter speed | 9.96875 |
APEX aperture | 4 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.90625 |
Focal plane Y resolution | 16,483.516129032 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Date metadata was last modified | 15:44, 21 January 2016 |
Unique ID of original document | 1EAC8B48B6C1659F7890D50848805D80 |